Spool with removable head



Ot. .7, 1952 J. B. HAWLEY 2,613,049

SPOOL WITH REMOVABLE HEAD Filed Sept. 19, 194'? I N VEN TOR: Jo'wv B,Haw 7 ,ZMKM

ATTORNEY P tented Oct 7, 952

SPOOL WITH REMOVABLE HEAD I John B. Hawley, Sharon Center, Ohio,assignor to Akron Spool & Manufacturing 00., a corporation of OhioApplication September 19, 1947, Serial No. 774,944

This invention relates to an improved spool for the textile industry,and particularly a'spool of the larger type which is used forre-spooling cotton cables, etc.

Cotton cables are made from twisted cotton cord. It is customary tore-spoolthem between their manufacture and use. They are re-spooled onto spools about six or eight inches long and several inches in diameter.The cables are wound tightly on to the spools. The barrel of a spoolmust be made sufficiently strong to withstand the very considerablepressure exerted by the tightly wound cable. Also the heads of a spoolmust be held to the barrel so that-,the lateral pressure of the woundcables against the heads does not cause them to separate from thebarrel. I Pressure developed varies with the material wound on to aspool. The new constructions of this invention make all sizes of spoolssufiiciently strong to permit successful winding of all materialsincluding those of highest shrinkage factor.

In all spools except metal ones there is a tendency for the heads tochip and break because of the rough treatment they undergo. This roughtreatment tends to raise burrs on metalheaded spools and they may catchand fray or sever the material being wound. The heads of this inventionare preferably molded of plastic and therefore are exceedingly resistantto chipping, breaking, and raising of burrs. I

The various novel features of the invention will be more evident fromthe detailed description which follows:

In the drawings,

Fig. 1 is an exploded view of a preferred spool of the invention;

Fig. 2 is an end view of the spool; r

Fig. 3 is a side view of the spool partly broken away;

Fig. 4 is an end view of a slightly different; construction; e

Fig. 5 is an end view of a modified form of the invention;

Fig. 6 is a side view of the same;

Fig. 7 is an end view of a further modification; and

Fig. 8 is an end view of the same.

The spool comprises two heads I and 2, and a barrel 3. In the largerspools the barrel 3 is cut from metal tubing. In smaller spools such asmay be used for winding thread or cord for any purpose the barrel may beof resin-treated paper which is cured to give it high strength. Generallhowever, sections of metal tubing Will be preferred for both larger andsmaller spools.

2 Claims. (01. 2&2-124) The heads I and 2 are preferably. molded fromreinforced hard'rubber, although other plastics maybe used. Thereinforcing filler'which is preferred in the hard-rubber construction'is known in the trade as friction. Itis'ground-mp fabric consisting ofthread or cords of cotton. rayon, nylon, etc., perhaps /2 inch inlength. This friction may be made from used automobile tire carcasses.Hard rubber with such filler is not only resilient and resistantiochipping, but the filler gives it strengthso that it is highly resistantto breakage.

An annular groove is counter-sunk into the heads I and 2 at 4 on theinner surface to receive the ends of the barrel 3.' Instead ofcountersinking an annular groove in the inner surface of each head, thecountersunk area may be a counterbore which may be circular and of thesame or nearly the same diameter as the barrel. In any event the ends ofthe barrel are inset into the heads so that no thread or cable orwhatever is wound upon the spool can worl; its way over an end of thebarrel to become caught between'it and the head. This is animprovementover those spools in which the ends of the barrel are flush with theinner surface of the head.

The tube In which passes through the axis of the spool accommodates thespindle or other ele-, ment on which the spool is mounted in use and iknown as the spindle guide. In the construction shown in Figs. 1-3 thediameter of this guide is decreased at each end at I I and. theseportions of smaller diameter fit into the openings I2 in the head of thespool. The shoulder I13 of the guide cooperates with the complementaryshoulder I4 in the head to assist in spacing the heads, and to providegreater rigidity to the heads by means of this shoulder support whichkeeps the heads perpendicular to this barrel. The larger inside diameterof the spindle guide between the shoulders aforementioned providesgreater clearance between the wall of the spindle guide and the spindleon which the spool will be placed in use. Such enlargement of thespindle guide prevents stray scraps of thread, cord, etc. from bindingthe spindle if they chance to enter the spindle guide when the spool ison the spindle, and in cotton mills prevent lint from packing andbinding the spindle.

Each head may be provided with a friction plate I5 which is fastenedinto the head of the spool in any suitable manner. This friction plateprevents wear. In the arrangement shown the wings IG are flared at eachend and the plastic of the 3 heads is molded over and around them toanchor them in the plastic.

There are two or more threaded studs welded into each end of the barreland there are cor responding openings 2| in each head through whichthese studs protrude. Each head is countersunk at 22 to receive theWashers 23 and nuts 24. These nuts are tightened onto the studs. Bymolding counterbores into themolded heads to receive the nuts frictionallosses are eliminated as well as the danger of injuring a person whomight contact one of the nuts in attempting to remove a spool from aspindle While the spool is spinning.

Alternatively, the washers may be replaced by a thin annular metal ring21 which is suitably incorporated in each head, as shown in Fig. 4.

Such spools are economically made. They are exceedingly strong andbecause they withstand the roughest treatment they are more economicalto use from the maintenance standpoint.

In the modification shown inIFigs. 5-6 acup .iswelded as at 30' to theinside of the barrel 3| and the bolts or self-tapping screws 321arescrewed into'them. The heads of the bolts:or screws come flush with thehead 33 of the spool. Thus, instead of bringing the head of the spoolagainst the ends of the barrel by tightening the nuts 24 as in thestructure shown in Figs. 13, the bolts are threaded down into the cup inthe modification shown in Figs. 5 and 6. In the latter figures, thespindle guide l0, reduced'end portions ll thereof, and shoulders l3cooperate with the barrel 3| and heads'33 in substantially the samemanner as their unprimed counterparts in Figs. 1 to 3 cooperatewithbarrel't and heads I and 2.

In the modification shown in Figs. 7 and 8, the pin 43, one end of whichis projection-welded to the barrel 40, projects into a small well 44 inthe head. This pin is not threaded. It simply prevents the head 42 fromturning with respect to the barrel 40. There need be but one such pin ateach end of the barrel. The heads are prevented from separating from thebarrel by flaring the ends 45 of the spindle guide 46. With both ends ofthe guide 46 flared, as shown in Figs. 7 and 8, it is impossible for theheads to separate from the barrel.

In all the modifications the ends of the hollow cylindrical barrel areinset in the heads. The barrel is not fabricated other than to cut itfrom a longer section. Thus it is of uniform cross-section throughout.Although it is preferably cylindrical, it will be appreciated that itmay be many-sided, as, for example, a hexahedron or octahedron. Means isprovided for preventing'relative rotation of'the heads withrespect tothe barrel and means is also provided for preventing the heads fromseparating from'the barrel. The former means may be provided by simplycutting the ends of the barrel along irregular lines, as by' cuttingthem with saw-tooth edges, or the like. .Thelatter means may include theflared ends of the spindle guide which passes through the axis of thespool, although generally, separate meanssuch as shown in theconstructions illustrated. in Figs. 1 through 6 will beemployed. Thus,although a preferred design of spool is shown in Figs. 1 -3,modifications may be made. The invention is defined in the appendedclaims.

What I claim is:

1. A spool having a cylindrical barrel which is a section of tubing andhaving heads at each end against which rest the ends of the barrel, atubular spindle guide located axially of the spool and having end areasreduced in diameter which extend through said heads to provide bearingsfor said spindle, shoulders formed on said guide at theinner ends ofeachreduced area, each of said heads engaging at least a portion of oneof said shoulders, a centrally apertured cup welded in each end of saidbarrel and having an outer pe ripheral flange that extends toward theadjacent end of-the barrel with the outer edge of each flangebeingsubstantially flush with the adjacent edge of the barrel, said spindleguide passing through'saidcentral apertures in said cups Without beingjoined thereto, said heads and said cups being provided with alignedopenings, and threaded bolts extending through the latter openingszintothreaded engagement with the adjacent cup; tmholdtheheads of .the spoolto the barrel aridpreventrotation of the barrel relative to either head.

2. :A spool having at its axis a tubular metal spindleguide of smallerinterior and exterior di- 'ameter in its end areas and of largerinterior and exterior diameter intermediate its end areas whereby ashoulder is provided on its outer surfacezat the junction with each endarea, a cylindrical metal-barrel surrounding said guide, a centrallyapertured cup .in each end of said barrel provided'with an integral,outer peripheral flange that is welded to said barrel, said flangesextending towardtheadjacent' ends of the barrel with the outer edge ofeach flange being substantially-flushwith theladjacent edge of thebarrel, said spindle guide passing through said central apertures insaid cups without being secured thereto, a pair of spaced, centrallyapertured spool heads against which rest the respective ends of saidbarrel, said end areas of said guide extending through the apertures insaid heads and providing bearings forsaid spindle, with each of saidheads engaging at least a portion of one of said shoulders, said headsand said cups being provided' with aligned openings, and self-tappingscrews extending through the latter openings into threaded engagementwith the adjacent cup to hold the heads of the spool to the barrel andprevent rotation of the barrel relative to either head.

JOHN B. HAWLEY.

REFERENCES CETED The'following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 919,355 .Houghton Apr. 27, 19091,394,382 Warner Oct. 18, 1921 1,599,504 Underwood Sept. 14, 19261,781,801 'Baldwin Nov. 18, 1930 2,237,837 Markle, Jr Apr. 8, 19412,370,066 Olson Feb. 20, 1945 FOREIGN PATENTS Number Country Date512,660 France 0ct-20, 1920

